Blar i Institutt for matematiske fag på tittel
Viser treff 237-256 av 2474
-
Approximate Filtering Approaches for Switching Linear Dynamical Systems
(Master thesis, 2022)«State-observation model» er et dynamisk Bayesiansk nettverk (DBN) som inneholder to mengder stokastiske variabler som utvikler seg over tid; en skjult mengde og en observert mengde. De mest kjente «state-observation» ... -
Approximate marginal inference in binary Markov random fields using a mean squared error energy approximation and the junction tree algorithm
(Master thesis, 2016)In this thesis, we use a mean squared error energy approximation for edge deletion in order to make performing inference in Markov random fields using the junction tree algorithm tractable, and by that develop an approximate ... -
Approximate recursive algorithm for finding MAP of binary Markov random fields
(Master thesis, 2010)The purpose of this study was to develop a recursive algorithm for computing a maximum a posteriori (MAP) estimate of a binary Markov random field (MRF) by using the MAP-MRF framework. We also discuss how to include an ... -
Approximate recursive calculations of discrete Markov random fields
(Master thesis, 2010)In this thesis we present an approximate recursive algorithm for calculations of discrete Markov random fields defined on graphs. We write the probability distribution of a Markov random field as a function of interaction ... -
Approximation numbers of composition operators on H^p spaces of Dirichlet series
(Journal article; Peer reviewed, 2016)By a theorem of the first named author, $\varphi $ generates a bounded composition operator on the Hardy space ${\mathscr{H}}^p$of Dirichlet series $(1\le p<\infty )$ only if $\varphi (s)=c_0 s+\psi (s)$, where $c_0$ is a ... -
Approximations of Binary Markov Random Fields
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:292, Doctoral thesis, 2011) -
Arabidopsis myrosinases link the glucosinolate-myrosinase system and the cuticle.
(Journal article; Peer reviewed, 2016)Both physical barriers and reactive phytochemicals represent two important components of a plant’s defence system against environmental stress. However, these two defence systems have generally been studied independently. ... -
Aspects of Applying the ACER Method to Ocean Wave Data
(Master thesis, 2010)This thesis gives a presentation of the classical Peaks Over Threshold (POT) method and the recently developed Average Conditional Exceedence Rates (ACER) method. Real life ocean significant wave height data sets, each ... -
Aspects of Dirichlet series: Composition operators, Bohr’s theorem and universality
(Doctoral theses at NTNU;2024:181, Doctoral thesis, 2024) -
Aspects of first and second order cellular automata
(Master thesis, 2010)An introduction to the field of Higher-Order Cellular Automata (HOCA) is provided. Key concepts are defined and illustrated using examples. Some of the possibilities offered by this framework are explored, and used to take ... -
Assessing comorbidity and correlates of wasting and stunting among children in Somalia using cross-sectional household surveys: 2007 to 2010
(Journal article; Peer reviewed, 2016)Objective: Wasting and stunting may occur together at the individual child level; however, their shared geographic distribution and correlates remain unexplored. Understanding shared and separate correlates may inform ... -
Assessing gene-environment interaction effects of FTO, MC4R and lifestyle factors on obesity using an extreme phenotype sampling design: Results from the HUNT study
(Journal article; Peer reviewed, 2017)Background Our aim was to assess the influence of age, gender and lifestyle factors on the effect of the obesity-promoting alleles of FTO and MCR4. Methods The HUNT study comprises health information on the ... -
Assessing short-term risk of ischemic stroke in relation to all prescribed medications
(Peer reviewed; Journal article, 2021)We examined the short-term risk of stroke associated with drugs prescribed in Norway or Sweden in a comprehensive, hypothesis-free manner using comprehensive nation-wide data. We identified 27,680 and 92,561 cases with a ... -
Assessing some aspects of factor screening with nonnormal responses
(Journal article; Peer reviewed, 2019)Nonnormally distributed response values, such as count data for instance, create challenges for factor screening. One problem is that variances may vary from run to run. Another is the choice of screening design for such ... -
Assessing the value of seismic monitoring of CO2 storage using simulations and statistical analysis
(Peer reviewed; Journal article, 2021)Successful storage of CO2 in underground aquifers requires robust monitoring schemes for detecting potential leakage. To aid in this challenge we propose to use statistical approaches to gauge the value of seismic monitoring ... -
Assosiasjon mellom posisjonsinformasjon og peilinger fra en satellitt over nordområdene
(Master thesis, 2012)Forsvarets forskningsinstitutt (FFI) har ønske om å utvide eksisterende satellittovervåking av nordområdene fra kun posisjonsinformasjon mottatt via ''Automatisk indentifikasjonssystem'' (AIS) til å også inkludere ... -
Asymptotic Approximations of Gravity Waves in Water
(Master thesis, 2009)The governing equations for waves propagating in water are derived by use of conservation laws. The equations are then cast onto dimensionless form and two important parameters are obtained. Approximations by use of ... -
Asymptotic behavior of Ext for pairs of modules of large complexity over graded complete intersections
(Journal article; Peer reviewed, 2022) -
Asymptotic behaviour for parabolic-hyperbolic partial differential equations
(Master thesis, 2024)Vi studerer den asymptotiske oppførselen til varmelikninga og en skalar konveksjon-diffusjonslikning med et ikke-lineært konveksjonsledd, hvor vi følger (Zuazua, 2020). Rammeverket for arbeidet er sterke løsninger i ... -
At which spatial and temporal scales can fungi indicate habitat connectivity?
(Journal article; Peer reviewed, 2018)Isolation of habitats in space and time affects species globally and in a multitude of ecosystems. It is however often difficult to assess the level of isolation from the point of view of the focal species. Indicator species ...